| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-blockage nozzle device capable of controlling the intrusion of a solid material into a nozzle and easily discharging the solid material which has intruded into the nozzle. SOLUTION: In a nozzle device arranged in a tank with pointing upward, a pin 20 coaxially arranged in a nozzle hole 18 with some play is swingably supported in a standing position by a spring 21. With existence of the pin 20, a particle diameter of solid material capable of passing through the nozzle hole 18 from outside can be controlled to roughly a half of diameter of the nozzle hole 18. The solid material which has flowed into the nozzle can be discharged smoothly without blocking of the pin 20 because of swing of the pin 20.
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